*{
    margin: 0;
    padding: 0;
}
html,body{
    width: 100%;
    height: 100%;
}
section{
    header{
        width: 100%;
        height: 300px;
        background: #000;
        .container{
            width: 1000px;
            height: 100%;
            margin: auto;
            .title{
                display: flex;
                justify-content: space-between;
                h2{
                    color: #fff;
                    width: 120px;
                    height: 300px;
                    line-height: 300px;
                    margin-left: 100px;
                }
                .bg{
                    img{
                        width: 500px;
                        height: 300px;
                    }

                }
            }

        }
    }
    main{
        width: 100%;
        background: #f4f5f7;
        .container{
            width: 1000px;
            height: 100%;
            margin: 32px auto;  
            display: flex;
            .left{
                width: 70%;
                height: 100%;
                .a{
                    .video{
                        float: left;
                        video{
                            width: 500px;
                            height: 281px;
                        }
                        img{
                            width: 500px;
                            height: 281px;
                        }
                    }
                    .video-image{
                        float: right;
                        width: 142px;
                        height: 281px;
                        margin-left: 4px;
                        // overflow-y: scroll;  
                        .list{
                            height: 281px;
                            overflow: auto;
                            .preview{
                                margin-bottom: 5px;
                                img{
                                    width: 100%;
                                    height: 80px;
                                }
                            }
                        }
                    }
                }
                .introduction{
                    width: 100%;
                    box-sizing: border-box;
                    padding-right: 4px;
                    margin-top: 290px;
                    h3{
                        font-size: 16px;
                        color: #14191e;
                        line-height: 20px;
                        margin-bottom: 15px;
                        font-weight: 600;
                    }
                    .jianjie{
                        color: #14191e;
                        font-size: 12px;
                        line-height: 26px;    
                        overflow: hidden;
                        text-overflow: ellipsis;
                        display: -webkit-box;
                        -webkit-line-clamp: 10;
                        -webkit-box-orient: vertical;
                    }
                    p{
                        color: #008ee8;
                        font-size: 15px;
                        line-height: 26px;
                        cursor: pointer;
                    }
                }

                a{
                    text-decoration: none;
                    color: blue;
                }
                
                    .pinglun{     
                        h3{
                            margin-top: 90px;
                        }               
                        .rev{
                            width: 800px;
                            margin: auto;
                            .con{
                                width: 100%;
                                // border: 1px solid #ccc;
                                margin: 20px auto;
                                padding: 10px;
                                box-sizing: border-box;
                                list-style-type: none;
                                overflow: auto;
                                li{
                                    padding: 5px;
                                    line-height: 2;
                                    border-radius: 5px;
                                    clear: both;
                                    display: flex;
                                    flex-direction: column;
                                    align-items: flex-end;
                                    margin-bottom: 50px;
                                    .review{
                                        left: 0;
                                    }
                                }
                            }
                            #text{
                                height: 80px;
                                display: block;
                                margin: auto;
                                margin-top: 20px;
                                width: 100%;
                            }
                            #btn{
                                width: 80px;
                                height: 30px;
                                border: 1px solid #ccc;
                                float: right;
                                margin-top: 10px;
                            }
                        }
                        .ret{
                            text-decoration: none;
                            color: rgb(240, 133, 133);
                            font-weight: 900;
                            position: fixed;
                            right: 0;
                            top: 300px;
                            width: 50px;
                            height: 50px;
                            background: rgba(60, 161, 255, 0.459);
                            text-align: center;
                            line-height: 50px;
                            border-radius: 4px;
                        }
                    }

            }
            .right{
                width: 30%;
                height: 100%;
                margin-left: 50px;
                padding-top: 50px;
                .tag{
                    span{
                        font-size: 12px;
                        color: #14191e;
                        line-height: 12px;
                        display: inline-block;
                        padding: 4px 8px;
                        background-color: #f1f2f3;
                        margin-right: 4px;
                    }
                }
                    p{
                        margin-top: 10px;
                        font-size: 12px;
                        display: flex;
                        .lable{
                            display: inline-block;
                            flex: 0 0 60px;
                            width: 60px;
                            white-space: nowrap;
                            color: #8c9196;
                            line-height: 20px;
                        }
                        .value{
                            color: #14191e;
                            line-height: 20px;
                            margin-right: 10px;
                        }
                    }
                
                        
            }
        }
    }
    footer{
            width: 100%;
            height: 340px;  
            background: #000;
            margin-top: 32px;
            .container{
                width: 1000px;
                height: 100%;
                margin: auto;
                .left{
                    height: 108px;
                    float: left;
                    margin-right: 135px;
                    .biao{
                        display: flex;
                        a{
                        // display: inline-block;
                            margin-top: 95px;
                            height: 48px;
                            .logo{
                                width: 130px;
                                height: 48px;
                                display: flex;
                                img{
                                    width: 48px;
                                    height: 48px;
                                }
                                h1{
                                    width: 72px;
                                    height: 48px;
                                    margin-left: 10px;
                                    color: #fff ;
                                }
                                h1 p:nth-child(1){
                                    font-size: 24px;
                                }
                                h1 p:nth-child(2) {
                                    font-size: 12px;
                                }
                            }
                        }
                    
                        nav{
                            margin-left: 95px;
                            margin-top: 95px;
                            height: 48px;
                            padding-top: 12px;
                            box-sizing: border-box;
                            ul,
                            li {
                                list-style-type: none;
                            }
                            ul {
                                display: flex;
                                li {
                                    height: 25px;
                                    margin-right: 50px;
                                    line-height: 25px;
                                    a {
                                        color: #676b6e;
                                        font-weight: 900;
                                    }
                                }
                            }
                        }
                    }
                    .copy-right{
                        width: 100%;
                        margin-top: 25px;
                        .copy-right1{
                            font-size: 12px;
                            color: #8c9196;
                            line-height: 1;
                        }
                        .copy-right2{
                            font-size: 12px;
                            color: #8c9196;
                            line-height: 1;
                            margin-top: 8px;
                        }
                        .copy-right3{
                            font-size: 12px;
                            color: #8c9196;
                            line-height: 1;   
                            margin-top: 8px;
                        }
                    }
                }

                .download {
                    width: 184px;
                    height: 108px;
                    display: flex;
                    flex-direction: column;
                    justify-content: space-between;
                    .dbtn {
                        width: 184px;
                        height: 48px;
                        box-sizing: border-box;
                        padding: 10px 10px;
                        display: flex;
                        background: #fff;
                        border-radius: 4px;
                        margin-top: 95px;
                        .dlogo img {
                            width: 34px;
                            height: 34px;
                            margin-right: 8px;
                        }
                        .dinfo .stitle {
                            line-height: 14px;
                            color: #14191e;
                            font-size: 12px;
                        }
                        .dinfo .title {
                            line-height: 20px;
                            color: #14191e;
                            font-weight: 500;
                            font-size: 14px;
                            white-space: nowrap;
                        }
                    }
                    .download-acc{
                        margin-top: 0;
                    }
                }
            }  
        }
}